/* ============================================
   匠精灵广告标识 - 完整CSS文件
   一次性彻底修复所有页面问题
   创建时间: 2026年3月16日
============================================ */

/* ========== 1. 基础重置与变量 ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 主色调 */
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #60a5fa;
    
    /* 辅助色 */
    --secondary-color: #f59e0b;
    --success-color: #10b981;
    --danger-color: #ef4444;
    
    /* 中性色 */
    --dark-color: #1e293b;
    --gray-900: #1e293b;
    --gray-800: #334155;
    --gray-700: #475569;
    --gray-600: #64748b;
    --gray-500: #94a3b8;
    --gray-400: #cbd5e1;
    --gray-300: #e2e8f0;
    --gray-200: #f1f5f9;
    --gray-100: #f8fafc;
    --white: #ffffff;
    
    /* 设计变量 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --radius-sm: 4px;
    --radius: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--gray-900);
    background-color: var(--white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ========== 2. 容器与工具类 ========== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.container-fluid {
    width: 100%;
    padding: 0 20px;
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mt-5 { margin-top: 2rem; }
.mt-6 { margin-top: 3rem; }
.mt-8 { margin-top: 4rem; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mb-5 { margin-bottom: 2rem; }
.mb-6 { margin-bottom: 3rem; }
.mb-8 { margin-bottom: 4rem; }

.p-0 { padding: 0; }
.p-1 { padding: 0.25rem; }
.p-2 { padding: 0.5rem; }
.p-3 { padding: 1rem; }
.p-4 { padding: 1.5rem; }
.p-5 { padding: 2rem; }
.p-6 { padding: 3rem; }
.p-8 { padding: 4rem; }

/* ========== 3. 导航系统 - 彻底修复 ========== */
.navbar {
    background-color: var(--white);
    box-shadow: var(--shadow-sm);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 12px 0;
    transition: var(--transition);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
    padding: 8px 0;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 56px;
}

/* Logo样式 */
.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-svg {
    height: 40px;
    width: auto;
    transition: var(--transition);
}

.logo:hover .logo-svg {
    transform: scale(1.05);
}

/* 汉堡菜单按钮 */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 44px;
    height: 36px;
    padding: 8px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1001;
}

.menu-toggle-bar {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--gray-800);
    border-radius: 2px;
    transition: var(--transition);
}

.menu-toggle[aria-expanded="true"] .menu-toggle-bar:nth-child(1) {
    transform: translateY(12px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-toggle-bar:nth-child(2) {
    opacity: 0;
}

.menu-toggle[aria-expanded="true"] .menu-toggle-bar:nth-child(3) {
    transform: translateY(-12px) rotate(-45deg);
}

/* 桌面导航菜单 */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-link {
    color: var(--gray-700);
    text-decoration: none;
    font-weight: 500;
    font-size: 16px;
    padding: 8px 0;
    position: relative;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link.active {
    color: var(--primary-color);
    font-weight: 600;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
    border-radius: 1px;
}

/* 电话按钮 */
.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary-color);
    color: var(--white);
    padding: 10px 24px;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    transition: var(--transition);
    border: 2px solid transparent;
}

.cta-button:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.cta-button:active {
    transform: translateY(0);
}

.cta-button.desktop-only {
    display: inline-flex;
}

/* ========== 4. 移动端导航 - 完美修复 ========== */
@media (max-width: 768px) {
    /* 导航栏调整 */
    .navbar {
        padding: 8px 0;
    }
    
    .nav-content {
        height: 48px;
    }
    
    .logo-svg {
        height: 36px;
    }
    
    /* 显示汉堡菜单，隐藏桌面导航 */
    .menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        display: none;
    }
    
    .cta-button.desktop-only {
        display: none;
    }
    
    /* 移动端导航菜单 */
    .nav-menu.active {
        display: flex !important;
        position: fixed !important;
        top: 0 !important;
        right: 0 !important;
        width: 85% !important;
        max-width: 320px !important;
        height: 100vh !important;
        background-color: var(--white) !important;
        flex-direction: column !important;
        align-items: flex-start !important;
        padding: 80px 32px 40px !important;
        box-shadow: var(--shadow-lg) !important;
        z-index: 999 !important;
        overflow-y: auto !important;
        animation: slideInRight 0.3s ease-out !important;
    }
    
    @keyframes slideInRight {
        from {
            transform: translateX(100%);
        }
        to {
            transform: translateX(0);
        }
    }
    
    .nav-menu.active .nav-link {
        display: block !important;
        width: 100% !important;
        padding: 16px 0 !important;
        font-size: 17px !important;
        color: var(--gray-800) !important;
        border-bottom: 1px solid var(--gray-200) !important;
    }
    
    .nav-menu.active .nav-link:last-child {
        border-bottom: none !important;
    }
    
    .nav-menu.active .nav-link:hover,
    .nav-menu.active .nav-link.active {
        color: var(--primary-color) !important;
        padding-left: 12px !important;
        background-color: rgba(37, 99, 235, 0.05) !important;
    }
    
    .nav-menu.active .nav-link.active::after {
        display: none;
    }
    
    /* 移动菜单中的电话按钮 */
    .nav-menu.active .cta-button {
        display: flex !important;
        width: 100% !important;
        margin-top: 24px !important;
        padding: 14px !important;
        background-color: var(--primary-color) !important;
        color: var(--white) !important;
        font-size: 16px !important;
        font-weight: 600 !important;
    }
    
    /* 菜单遮罩 */
    .menu-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0, 0, 0, 0.5);
        backdrop-filter: blur(4px);
        z-index: 998;
        animation: fadeIn 0.3s ease-out;
    }
    
    @keyframes fadeIn {
        from {
            opacity: 0;
        }
        to {
            opacity: 1;
        }
    }
    
    .menu-overlay.active {
        display: block;
    }
    
    /* 防止body滚动 */
    body.menu-open {
        overflow: hidden;
    }
}

/* ========== 5. 英雄区域 ========== */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(135deg, var(--gray-100) 0%, var(--gray-200) 100%);
    margin-top: 80px; /* 为固定导航栏留出空间 */
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(circle at 20% 80%, rgba(37, 99, 235, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--gray-900);
    letter-spacing: -0.5px;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--gray-600);
    margin-bottom: 40px;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ========== 6. 响应式优化 ========== */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 48px;
    }
    
    .hero {
        padding: 140px 0 80px;
        margin-top: 72px;
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 120px 0 60px;
        margin-top: 64px;
    }
    
    .hero-title {
        font-size: 40px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-buttons .cta-button {
        width: 100%;
        max-width: 280px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 100px 0 48px;
        margin-top: 56px;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .nav-menu.active {
        width: 90% !important;
        max-width: 280px !important;
        padding: 72px 24px 32px !important;
    }
    
    .nav-menu.active .nav-link {
        font-size: 16px !important;
        padding: 14px 0 !important;
    }
    
    .nav-menu.active .cta-button {
        padding: 12px !important;
        font-size: 15px !important;
    }
}

/* ========== 7. 页脚样式 ========== */
.footer {
    background-color: var(--gray-900);
    color: var(--gray-300);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    color: var(--white);
    font-size: 18px;
    margin-bottom: 20px;
    font-weight: 600;
}

.footer-links {
    list-style: none;
    padding: 0;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--gray-400);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--white);
    padding-left: 4px;
}

.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--gray-800);
    color: var(--gray-500);
    font-size: 14px;
}

/* ========== 8. 辅助类 ========== */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

.slide-up {
    animation: slideUp 0.5s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========== 9. 打印样式 ========== */
@media print {
    .navbar,
    .menu-toggle,
    .cta-button,
    .footer {
        display: none !important;
    }
    
    .hero {
        margin-top: 0 !important;
        padding: 40px 0 !important;
        background: none !important;
    }
    
    body {
        color: #000 !important;
        background: #fff !important;
    }
}